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webgui/www/extras/yui/examples/container/panelskin1.html
JT Smith 20f8df1291 upgrading to YUI 2.6 
data tables are going to need some work yet, but the other stuff seems to be working 100%
2008-10-22 23:53:29 +00:00

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<title>YUI Library Examples: Container Family: Skinning a Panel with Custom CSS: Introduction</title>
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<div id="pagetitle"><h1>YUI Library Examples: Container Family: Skinning a Panel with Custom CSS: Introduction</h1></div>
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<h1>Container Family: Skinning a Panel with Custom CSS: Introduction</h1>
<div class="exampleIntro">
<p>In this example, custom CSS and images are applied to the appearance of a Panel instance to stylize it similar to a Mac OS X document window. Use the buttons below to show and hide the Panel.</p>
</div>
<div class="example-container module newWindow">
<div id="example-canvas" class="bd">
<p class="newWindowButton yui-skin-sam"><span id="newWindowLink"><span class="first-child"><a href="panelskin1_source.html" target="_blank">View example in new window.</a></span></span>
</div>
</div>
</div>
<h2 class="first">Skinning the Panel Control with Custom CSS</h2>
<p>Panels (and all other containers using Standard Module Format) can be skinned using CSS to customize the look and feel of each component. In order to best explain how to customize the Panel's style, it is important to first understand the structure of the basic Panel. The Panel, with the default Sam skin applied looks like this:</p>
<p><img src="assets/img/skin-module.gif" width="320" height="99" alt="Panel Sam skin" /></p>
<p>Breaking the Panel down into its basic Standard Module Format, its structure can be diagrammed as such:</p>
<p><img src="assets/img/skin-chart.gif" width="320" height="99" alt="Basic panel structure" /></p>
<h3>Core CSS</h3>
<p>Since we're modifying virtually every aspect of the default Sam skin look for the panel, we'll include <code>container/assets/container-core.css</code> as our base set of CSS rules, instead of <code>container/assets/skins/sam/container.css</code>.</p>
<p>This way, we don't have to reset the additional style properties which are applied to implement Sam skin's look and feel. Our <a href="http://developer.ysahoo.com/yui/articles/skinning/">Understanding YUI Skins</a> article provides more information about skinning YUI components and the CSS files involved.</p>
<h3>Adding Custom Skin CSS</h3>
<p>The Panel, like all other YUI Container controls, has a header, body, and footer. In addition, the Panel also has a "close" element containing a background image to give it the appearance of a UI window close control. In this tutorial, we will manipulate the CSS styles for these elements and create several new elements to allow for additional pieces of the skin to be styled.</p>
<p>First, we will create rounded corners for our skin by applying images to the top left and top right corners of the Panel header. All of our CSS styles are applied to this Panel instance using ID selectors. In this case, the Panel's ID will be "myPanel", so all styles will begin with "#myPanel". In order to facilitate the creation of these corners, we will create two new empty <code>div</code> elements in the header, classed as "tl" and "tr" for "top left" and "top right":</p>
<textarea name="code" class="HTML" cols="60" rows="1">
<div class="hd">
<div class="tl"></div>
<span>Panel from Markup</span>
<div class="tr"></div>
</div>
</textarea>
<p> Notice that the title is placed into a <code>span</code> tag. This is so that it can be more easily styled using CSS. The images will be applied as background images to each of our new corner elements, along with width and height styles, positioning, and margins:</p>
<textarea name="code" class="CSS" cols="60" rows="1">
#myPanel.yui-panel .hd {
padding:0;
border:none;
background:url(assets/img/aqua-hd-bg.gif) repeat-x;
color:#000;
height:22px;
margin-left:6px;
margin-right:6px;
text-align:center;
overflow:visible;
}
#myPanel.yui-panel .hd span {
vertical-align:middle;
line-height:22px;
font-weight:bold;
}
#myPanel.yui-panel .hd .tl {
width:7px;
height:22px;
top:0;
left:0px;
background:url(assets/img/aqua-hd-lt.gif) no-repeat;
position:absolute;
}
#myPanel.yui-panel .hd .tr {
width:7px;
height:22px;
top:0;
right:0px;
background:url(assets/img/aqua-hd-rt.gif) no-repeat;
position:absolute;
}
</textarea>
<p>After absolutely positioning the new corner elements, they are anchored to the left and right corners of the header, as shown in this diagram:</p>
<p><img src="assets/img/skin-corners.gif" width="320" height="99" alt="Panel rounded corner elements" /></p>
<p>In this skin, we want our close icon to be positioned on the left side of the header, rather than the right side. We can override the existing "close" style so that the icon will be placed on the left. At the same time, we will apply background images to the close icon for both secure (https) and non-secure (https) servers. Since mixed content from secure and non-secure sites can cause security warnings in some browsers, YUI Container provides CSS hooks for both contexts so that you can specify proper sources for both.</p>
<textarea name="code" class="CSS" cols="60" rows="1">
#myPanel.yui-panel .container-close {
position:absolute;
top:3px;
left:4px;
height:18px;
width:17px;
background:url(assets/img/aqua-hd-close.gif) no-repeat;
}
/* span:hover not supported on IE6 */
#myPanel.yui-panel .container-close:hover {
background:url(assets/img/aqua-hd-close-over.gif) no-repeat;
}
</textarea>
<p>Again, charting the repositioned close icon, it would look like this:</p>
<p><img src="assets/img/skin-close.gif" width="320" height="99" alt="Panel close element position" /></p>
<p>Styling the body and footer are as simple as overriding the default styles with the desired ones:</p>
<textarea name="code" class="CSS" cols="60" rows="1">
#myPanel.yui-panel .bd {
overflow:hidden;
padding:4px;
border:1px solid #aeaeae;
background-color:#FFF;
}
#myPanel.yui-panel .ft {
font-size:75%;
color:#666;
padding:2px;
overflow:hidden;
border:1px solid #aeaeae;
border-top:none;
background-color:#dfdfdf;
}
</textarea>
<p>After applying all the styles to our Panel instance, the final output looks like the image below. Looking at the chart, we can see where the original familiar elements end up in the new layout, in addition to our newly created corner elements:</p>
<p><img src="assets/img/skin-final.gif" width="640" height="99" alt="Final Aqua skin panel and structure"/></p>
<p>We will tackle another skinning example in the <a href="panelskin2.html">Advanced Skinning Tutorial</a>.</p>
</div>
<div class="yui-u">
<div id="examples">
<h3 class='firstContent'>Container Family Examples:</h3>
<div id="exampleToc">
<ul>
<li><a href='../container/module.html'>The Module Control</a></li><li><a href='../container/overlay.html'>Creating and Positioning an Overlay</a></li><li><a href='../container/tooltip.html'>Simple Tooltip Example</a></li><li><a href='../container/tooltip-multi.html'>One Tooltip, Many Context Elements</a></li><li><a href='../container/panel.html'>Simple Panel Example</a></li><li class='selected'><a href='../container/panelskin1.html'>Skinning a Panel with Custom CSS: Introduction</a></li><li><a href='../container/panelskin2.html'>Skinning a Panel with Custom CSS: Advanced</a></li><li><a href='../container/panel-loading.html'>Creating a Modal "Loading" Panel</a></li><li><a href='../container/panel-resize.html'>Creating a Resizable Panel</a></li><li><a href='../container/dialog-quickstart.html'>Dialog Quickstart Example</a></li><li><a href='../container/simpledialog-quickstart.html'>SimpleDialog Quickstart Example</a></li><li><a href='../container/container-effect.html'>Using ContainerEffect Transitions</a></li><li><a href='../container/overlaymanager.html'>Using the Overlay Manager to Manage Multiple Panels</a></li><li><a href='../container/keylistener.html'>Implementing Container Keyboard Shortcuts with KeyListener</a></li><li><a href='../button/button-ariaplugin.html'>Using the Button ARIA Plugin (included with examples for Button Control)</a></li><li><a href='../container/container-ariaplugin.html'>Using the Container ARIA Plugin</a></li><li><a href='../colorpicker/colorpicker-dialog-from-script.html'>Example of Color Picker Built in a Dialog via JavaScript (included with examples for Color Picker Control)</a></li><li><a href='../layout/panel_layout.html'>Layout inside a resizable Panel (included with examples for Layout Manager)</a></li><li><a href='../calendar/calcontainer.html'>Calendar inside a Container (included with examples for Calendar Control)</a></li><li><a href='../button/btn_example07.html'>Menu Buttons (included with examples for Button Control)</a></li><li><a href='../datatable/dt_colshowhide.html'>Showing, Hiding, and Reordering Columns. (included with examples for DataTable Control)</a></li><li><a href='../button/btn_example08.html'>Split Buttons (included with examples for Button Control)</a></li><li><a href='../button/btn_example09.html'>Simple Calendar Menu Button (included with examples for Button Control)</a></li><li><a href='../button/btn_example10.html'>Calendar Menu Button with Date on Button Face (included with examples for Button Control)</a></li><li><a href='../button/btn_example11.html'>Color Picker Button (included with examples for Button Control)</a></li><li><a href='../button/btn_example12.html'>Fixed Width Menu Button (included with examples for Button Control)</a></li><li><a href='../menu/programsmenu.html'>OS-Style Programs Menu (included with examples for Menu Family)</a></li><li><a href='../menu/applicationmenubar.html'>Application Menubar (included with examples for Menu Family)</a></li><li><a href='../button/btn_example14.html'>Slider Button (included with examples for Button Control)</a></li><li><a href='../layout/adv_layout.html'>Complex Application (included with examples for Layout Manager)</a></li> </ul>
</div>
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<h3>More Container Family Resources:</h3>
<ul>
<li><a href="http://developer.yahoo.com/yui/container/">User's Guide</a> (external)</li>
<li><a href="../../docs/module_container.html">API Documentation</a></li>
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